4 less than the quantity of 8 times n 2. 6 times the sum of y and 11 3. The square of m reduced by 49 4. The quotient when the quantity of 17 plus p is divided by 8 5. Jim earned j in tips, and Steve earned s in tips. They combine their tips and then split them equally. 6. Owen has c collector cards. He quadruples the number of cards he has and then combines them with Ian, who has i collector cards. 7. Rae runs 4 times as many miles as Madison and Aaliyah combined. Madison runs m miles, and Aaliyah runs a miles. 8. By using coupons, Mary Jo is able to decrease the retail price of her groceries, g, by $125. 9. To calculate the area of a triangle, you find the product of the base and height and then divide by 2. 10. The temperature today was 10 degrees colder than twice yesterday's temperature, t.

The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u.s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.